MCMCB Pro
E10.339

E10.339Type 1 diabetes mellitus with moderate nonproliferative diabetic retinopathy without macular edema

Non-billable headerICD-10-CM

E10.339 is a non-billable header ICD-10-CM code for type 1 diabetes mellitus with moderate nonproliferative diabetic retinopathy without macular edema. It cannot be billed on its own: choose one of the more specific child codes below. This code also requires a 7th character before it is complete.

This code requires a 7th character

One of the following 7th characters is to be assigned to codes in subcategory E10.33 to designate laterality of the disease:

1
right eye
2
left eye
3
bilateral
9
unspecified eye

Risk adjustment

E10.339 does not map to an HCC and does not risk-adjust under CMS-HCC V28. That is normal — most ICD-10 codes do not. It still needs to be coded correctly; it just will not move a RAF score.

How E10.339 is indexed

Coders do not find codes by browsing the tabular list — they look them up in the alphabetic index, under the word the physician wrote. These are the index entries that lead here, so you can see which chart wordings map to E10.339.

  • Diabetes, diabetictype 1withretinopathynonproliferativemoderate

Code to one of these instead E10.339

4 child codes. Green means billable.

Related codes at this level

Codes that share E10.33. If E10.339 is not quite right, the correct code is usually one of these.

Questions about E10.339

Is E10.339 a billable ICD-10-CM code?
No. E10.339 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
Where does E10.339 sit in the tabular list?
Endocrine, nutritional and metabolic diseases (E00-E89), in the block Diabetes mellitus (E08-E13).
ICD-10-CMFY2026-Apr· effective April 1, 2026

Loaded directly from the CMS/NCHS ICD-10-CM public-domain release — see data sources and our editorial policy. If this page disagrees with the CMS tabular list, this page is wrong. Reference information for professional coders; not medical or billing advice.